Nut-machine



UNITED sTATEs PATENT oEEicE.

RIGHD. COLE, OF ST. LOUIS, MISSOURI.

NUT1VIACHINE.

Specification of Letters Patent No. 13,252, dated July 17, 1855.

To aZZ whom it may concern.'

Be it known that I, RICHARD H. COLE, of the city of St. Louis, in the State of Missouri, have invented a new and Improved Nut-Making Machine; and I do hereby de- Clare that the following is a full and exact description thereof, reference being had to the accompanying drawings, making a part of this specification, Figure 1 being a top view; Fig. 2, a front elevation; Fig. 3, a vertical section in the line :r x of Fig. 1; Fig. 4, a horizontal section in the line y y of Fig. 2; Fig. 5, a vertical section of a part of the machine in the line fw w of Fig. 1; Fig. 13, an end view of the machine, and Figs. 6, 7, 8, 9, 10, 11, 12, and 14 are representations of parts of the machine. det-ached.

Similar letters indicate like parts in all the figures.

The nature of my invention consists, in combining a movable bottom y" with t-he nut boX in such a manner that it has an elastic rearward bearing at the moment that the nut is formed, for the purpose of self adapting the machine to bars of different thickness, insuring perfectly faced nuts, and preventing the straining of the machine when a thicker bar is subjected to its action.

The frame of my nut making machine may be made of any shape that may be demed most convenient. Y

The accompanying drawings represent the form of frame which has been constructed and practically and successfully tested by me, the said frame being composed of the rear longitudinal portion R, the front longitudinal portion Q, the bed plate S, projecting forward from the bottom of the said portion Q, and the central vertical plate N, standing at right angles to the portion Q, and connected to, or cast in one piece with, the said portion Q, and the base plate S. The said plate N, is stened by a flange N', as shown in the drawings.

A rectangular open frame Z, is secured by the screws c, to the rightA side of the plate N, over a corresponding aperture in said plate. The said frame Z, has a rabbet in the outer side of its opening, which rabbet receives the plate c, at t-he rear side of said opening, the knife c', at its front side, the block ZJ, at the top and the block o, at the bottom thereof. The said blocks o, are secured in their positions by the screws a, and o', as shown in Fig. 3; and the plate c, and lmife c', are passed down through slots in the top and bottom of the frame Z, and secured in their positions in contact with the blocks, Z), and fu, by means of the keys, n, a, as represented in Figs. 1, and 4. The blocks, Z), and o, are laterally adjusted in their positions by means of the set screws o, and 20, as shown in Fig. 3. The frame Z, and the aforesaid parts combined therewith, form what I term the nut boX. In front of the nut boX is located the rest g, that supports the iron bar as it is fed into the machine ,-the said rest has a screw shank descending from its under side that passes into a screw opening in a short arm projecting from the plate N, as shown in Fig. 2, by which the said rest can be raised or lowered to the proper position.

To guide the end of the bar tov its proper position as it is fed into the machine, there is a projecting shoulder on the plate c, for the end of the bar to strike against, andthe upper block Z), of the nut boX, projects outward beyond the face of the frame Z, for the upper edge of the bar to be brought in contact with.

The hollow punch eZ, is combined with a sliding plate G, which works in a recess in the projecting portion of the frontpart Q, of the frame of the machine, at the right, and in which it is secured by the beveled edged embracing plates G, G. The said sliding plate G, may be accurately adjusted to the desired position, by means of the set screws a, a, which act against the outer edges of the embracing plates G, G. The plate G, is reciprocated back and forth by means of a crank on the o-uter end of the shaft K, whose wrist K', passes into a rectangular box n, which works in a transverse slot in the said plate G, as represented in Figs. 3 and 4. The punch CZ, is combined with the sliding plate G, by means of the hollow holder cZ, which passes 'into a recess in the shank at the inner end of said plate, and is retained therein by the clamp m, and the set screw g', as represented in Fig. 14. The said holder aZ, is adjusted to any desired position by means of the set screws s, t', m', and e', as represented in Fig. 14. The punch (Z, is held within themouth of the holder ZZ, by means of the pin lc, as representedk in Figs. 1, and 4. The recess in the. inner end of the shank of the sliding plate G, that receives the holder cZ, of the punch, ext-ends inward a suiicient distance to admit in the rear of said holder, the hollow bearing piece u, that receives the thrust of the punch; and the inner portion of said recess is connected with an aperture that passes upward from the lower side of G. The aperture in the pump d, opens into the aperture in the holder cZ, and the aperture in said holder, opens into the aperture in the bearing piece u, and the aperture u, in the said bearing piece u, opens outward from the under side of the shank of the plate G, as represented in Fig. 3. The punch may be moved forward by means of the wedge o", (Fig. 4) which passes through the shank of the plate G, immediately in the rear of the bearing piece u, and is acted upon by means of the screw nut g, which works upon a screw shank at the smallest end of said wedge and bears against the front side of G, as represented in Fig. 4.

I will now proceed to describe the arrangement and operation of the movable bottom y', of the nut box, and the mandrel e, which is combined with it. The said bottom j, of the nut box, is combined with a hollow holder y" and the said holder j, is secured within a recess in a forward projection of the inner end of the reciprocating plate H, by means of the keys c', c', the clamp y, and the set screw y, as represented in the drawings; or in any other suitable manner. The reciprocating plate H, works in the bottom of a recess formed in a projecting portion of the part Q, of the frame, at the left hand end thereof, and is held in its position by means of the beveled bearers H, H, as represented in Fig. 13. The plate H, is thrown forward by means of a cam P, on the rotating shaft J, which works in an aperture in said plate through which said shaft passes. The said plate H, is forced outward by the action of the punch cl, by the pressure exerted upon the bottom y', of the nut box when a nut is formed by the action of said punch. The said pressure against the bottom of the nut box, is resisted by means of a crank on the oscillating shaft L, whose wrist L, is received into a rectangular box c, that works in a transverse slot in the plate H, and by the weighted lever A, which projects rearward from said shaft, as represented in Figs. l, 4, 5 and 8. The plate H, is thrown forward (by the cam 1),) a suflicient distance to carry the end of the bottom j, of the nut box entirely through the box, for the purpose of enabling it to discharge the finished nut; but the moment that the said cam ceases to operate upon the plate H, the cam m, on the rotating shaft J, strikes against the friction plate m', on the under side of the shaft L, and elevates said shaft, and by so doing causes its crank L, to operate the plate H, and draw the bottom j, of the nut box into the box a suflicient distance to receive the blank for a nut at the moment that it is cut off by the punch.

While the punch CZ, is advancing to give the proper shape to a nut, by forcing the blank that has just been cut off by it against the yielding bottom of the nut box, the mandrel e, is made to advance and pierce the nut, (passing entirely through it into the aperture in the punch, and forcing the disk of metal removed by it into said aperture,). and as soon as this is accomplished the movements of the punch and of the mandrel are reversed, and as soon as the punch has moved far enough to separate itself from the nut, the caln P, is brought into a position to throw forward the bottom of the* nut' box and discharge the finished nut from said box, preparatory to the formation of another nut.

To adapt the depth of the nut box to the different thicknesses of the nuts to be formed, keys of different thicknesses may be inserted between the friction plate m, and the lever A; and to cause the cam m, to operate for exactly the proper length of time upon the plate H, the said cam is divided into two parts which interlock each other in such a manner that their bearing face may be extended or contracted at leasure by changing their-position on the s iaft J, and securing them by set screws or wedges. The friction plate m, may be secured to the weighted lever A,.by means of set screws, or clamps in any suitable manner.

The mandrel e, which passes through the bottom y', of the nut box, is combined with the plate F, by means of the key b', the

clamp w, the set-screw lw, and the set screw` f, as represented in Figs. 1, 2, 3 and 4. The key b, passing through an elongated slot near the head of the mandrel, and the set screw f, passing through the head of the mandrel and acting against the edge of the key, enables the length of the mandrel to be adjusted at pleasure. The mandrel e, is reciprocated by means of a crank on the rotating shaft J, whose wrist J is received into the box a', which works in a transverse-slot in the plate F. The said plate F, is secured in its position, in front of the plate H, by the beveled edged bearers F, F. The outer surfaces of the bearers H, H, which retain the plate H, in its position, also serve as the inner bearing surfaces of the plate F. The holes in thebearers F', H, and G, which receive the set screws a, a, are somewhat elongated, (as shown in Fig. 3,) for the purpose of enabling the set screws c, of, which act upon the outer edges of said bearers, to vary the position of the plates F, G, H, as circumstances may require in adjusting the respective parts of the machine to each other.

The rotating shafts J, VK, are geared to each other and to the driving shaft I, by means of the cog wheels E, E, on the said f shaft J, K, and the pinion- D, on the driving perfectly shaped nuts, and enabling the machine to self adapt itself to bars of different thicknesses, substantially as herein set forth.

The above specification of my improved 15 nut making machine signed and witnessed this twenty fourth day of April 1855.

RICHARD H. COLE.

Vitnesses:

GEO. l/V. ADAMS, Z. C. ROBBINS. 

